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Simply SupplementsBotanicals & extracts

Glucomannan Fibre Capsules 3000mg, 120 capsules

£13.99 for 120 capsules at Simply Supplements. That works out at 23p per 1 g, which ranks it 2nd of the 3 glucomannan products we price across 3 UK retailers.

What it really costs, per 1 g23pOne 1 g dose is our comparison unit for glucomannan. It is not a recommendation.
A day23p
A week£1.63
A month£7.00
A year£85.11

At one 1 g dose a day, this pack lasts 2 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

  • Servings: 120 ÷ 6 per serving = 20
  • In the pack: 20 × 3 g = 60 g
  • £13.99 ÷ 60 g × 1 g = 23.3p per 1 g
  • A week 23.3p × 7 = £1.63 · a month × 30 = £7.00 · a year × 365 = £85.11
  • Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

Cheaper glucomannan

All 3, ranked →
Glucomannan 500mg CapsulesCheapest per 1 gBulk · 3 g a serving · £5.16 a month · a pack lasts 3 months17p£15.49View at Bulk (opens in a new tab)
This productSimply Supplements · 3 g a serving · £7.00 a month · a pack lasts 2 months23pshown above

Switching to the Bulk pack saves £1.83 a month at the same 1 g dose.

Ranked purely by price per 1 g. 3 combination products also contain glucomannan.

On the label

Glucomannan · Glucomannan
3 g per serving (stated on the label)
Pack
120 capsules · 20 servings · 6 capsule(s) a serving
Cost per serving
70p (20 servings in the pack)
More label details
Testing
Claimed on the label (not verified by us)
Barcode
5056049518735
Sold by
Simply Supplements
What the listing says
“Each individual glucomannan fibre capsule contains 500mg of glucomannan” · “Glucomannan Fibre Capsules 3000mg” · “confirmed from the retailer's own product page, not this listing's text: pack units 120; pack unit type capsule; units per serving 6.0”
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One 1 g dose is our comparison unit, not a recommendation.

Price history

No price change since 21 September 2026. Checked on 28 days, most recently 20 October 2026.

Price at every check
£13.99Simply Supplements
First recorded
£13.9921 Sept
Checked on
28 dayssince 21 Sept
Pack price at each check.
  1. First checked at Simply Supplements: £13.99

Questions about this product

How much does Simply Supplements Glucomannan Fibre Capsules 3000mg cost per 1 g?

23p per 1 g, from £13.99 for 120 capsules at Simply Supplements, checked on 20 October 2026.

Is it the cheapest glucomannan in the UK?

No, it is 2nd of 3. Glucomannan 500mg Capsules at Bulk works out at 17p per 1 g.

How long does one pack last?

2 months at one 1 g dose. The pack holds 60 g in total.

About Simply Supplements

Founded 2004 · Yaxley, Peterborough, England

Simply Supplements is an online vitamins and supplements retailer that started in Guernsey in 2004 and is now based in Yaxley, near Peterborough. It is the trading name of Pinnacle Health Nutrition Ltd, a privately owned UK company.

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